baber/WOPTO huggingface dataset:
Patent TW-I774234-B (TW)
Title: Semiconductor deposition system and operation method thereof
Inventor: TUNG KAI-YU
IPC: H01L21/687
Filed: 2021-02-08
Granted: 2022-08-11
Abstract: A semiconductor deposition system includes a chamber, a target, an electrostatic chuck, a first radiofrequency alternating current device, and a second radiofrequency alternating current device. The target is disposed above the chamber. The electrostatic chuck is disposed in the chamber and below the target and includes a first chuck portion and a second chuck portion laterally surrounding the first chuck portion. The first radiofrequency alternating current device is located outside of the chamber and connected to the first chuck portion of the electrostatic chuck. The second radiofrequency alternating current device is located outside of the chamber and 
connected to the second chuck portion of the electrostatic chuck.
Patent TW-I773192-B (TW)
Inventor: HUANG MU SHUI
IPC: B23Q5/54
Filed: 2021-03-15
Granted: 2022-08-01
Abstract: 本發明提供一種三軸加工機控制平台結構，包括：本體、一第一加工軸單元、第二加工軸單元、第三加工軸單元、複數個刀具、固定測量單元、第一測量單元群組以及處理單元。該固定測量單元用以固定一待加工件並量測該待加工件的尺寸。該第一測量單元群組用以分別測量該第一頭部、第二頭部與第三頭部以及該複數個刀具的尺寸。該處理單元根據所分別量測的該待加工件、該等頭部、該等刀具的尺寸與加工圖比對，藉以決定該第一加工軸單元、該第二加工軸單元與該第三加工軸單元的移動順序。
Patent TW-I769743-B (TW)
Title: Water block reinforcement structure
Inventor: LEE SUNG-WEI
IPC: H05K7/20
Filed: 2021-03-17
Granted: 2022-07-01
Abstract: A water block reinforcement structure includes a substrate and a cover body mated with the substrate to define a heat exchange chamber therebetween. At least one radiating fin assembly and at least one reinforcement section are disposed in the heat exchange chamber. The reinforcement section has an upper end connected with the inner face of the cover body by a connection means, thereby the water block is supported to bear an external compression pressure and an anti-internal expansion.
Patent TW-I758134-B (TW)
Title: System for using image features corresponding to component identification for secondary inspection and method thereof
Inventor: LIU HAO
IPC: G06K9/64
Filed: 2021-03-17
Granted: 2022-03-11
Abstract: A system for using image features corresponding to component identification for a secondary inspection and a method thereof are provided. By obtaining component identification of components welded on a printed circuit board (PCB), obtaining standard image features of a target component has not passed an automated optical inspection (AOI) based on the component identification of the target component, generating detection image features of a detection image of the target component, and using a detection model provided to the standard image features and the detection features to determine whether the target component can pass secondary inspection, the system and the method can determine soldering status of alternative component on PCB effectively, and can achieve the effect of improving accuracy of AOI and reducing labor cost.
Patent TW-I771955-B (TW)
Inventor: SONG JIAN-CHAO
IPC: G03B17/12
Filed: 2021-03-18
Granted: 2022-07-21
Abstract: 本申請提供了一種鏡頭模組，包括電路板，還包括鏡頭元件、濾光片和安裝架，鏡頭元件設置在電路板一側，安裝架設置在鏡頭元件和電路板之間；安裝架開設有貫穿安裝架的通孔，安裝架內側壁朝向通孔的中心軸延伸形成了凸緣，濾光片安裝於凸緣上；濾光片遠離電路板一面的邊緣處設置有第一阻擋層，濾光片與安裝架內側壁之間設有第二阻擋層，第二阻擋層遠離電路板的表面高於第一阻擋層。本申請提供的鏡頭模組中第一阻擋層和第二阻擋層能夠更有效地遮擋一些特定的強光，提升了拍攝畫面成像的品質。本申請還提供一種應用鏡頭模組的電子裝置。
Patent TW-I761182-B (TW)
Inventor: LIANG CHIN-WEI
IPC: H02K3/50
Filed: 2021-04-19
Granted: 2022-04-11
Abstract: 本發明公開一種磁芯結構及其製作方法。磁芯結構包含一磁芯、多個導電層及兩個導線。磁芯具有一捲繞柱、及連接捲繞柱兩端的一第一側柱及一第二側柱。捲繞柱包含具有一個容置槽的兩個外凸部。第一側柱具有兩個第一設置台，第二側柱具有兩個第二設置台。多個導電層設置於兩個第一設置台與兩個第二設置台上。兩個導線捲繞於捲繞柱上，兩個導線的部份分別位於兩個容置槽內。其中一個導線電性耦接相同一側的第一設置台及第二設置台上的導電層，另一個導線電性耦接相同另一側的第一設置台及第二設置台上的導電層。據此，磁芯結構能提升製作效率。
Patent TW-I768938-B (TW)
Inventor: JEON HAN SEM
IPC: G06F16/51
Filed: 2020-04-08
Granted: 2022-06-21
Abstract: 一種有效管理及調整影像之系統以及方法被提出。方法包括接收一或多個產品資料，一或多個產品資料包括用於顯示與多個產品相關聯的一組影像的影像序列；對一或多個產品資料進行調整，其中調整包括以下至少一個：重新排列影像序列，在多個狀態之間切換一組影像的一或多個影像，裁剪一組影像的一或多個部分，自影像序列移除影像的第一子集，利用新的影像來替換影像的第二子集，並且調整影像的第三子集的出現；以及依據一或多個產品資料使一組影像可被多個聯網系統存取。
Patent TW-I802901-B (TW)
Inventor: QIANG LI
IPC: H04W48/16
Filed: 2021-06-04
Granted: 2023-05-21
Abstract: 本發明提供了一種通信方法及通信裝置，該方法可以用於通信領域。方法可以包括：終端設備通過小區選擇或重選從第一小區到第二小區，其中，第一小區和所述第二小區的無線接入技術不同；終端設備在第一小區中處於非激活態，並通過小區重選到第二小區；完成小區重選終端設備發起註冊流程。當處於非激活態的終端設備進行不同無線技術的小區重選將發起註冊流程或服務請求流程，用於NAS信令連接恢復。在終端設備變更無線接入技術情況下，可以使得網絡設備更新信息。
Patent TW-I762366-B (TW)
Title: Semiconductor memory device
Inventor: LEE JAE-SEUNG
IPC: G11C11/406
Filed: 2017-12-04
Granted: 2022-04-21
Abstract: A semiconductor memory device includes a first count circuit suitable for counting a first clock signal which continuously toggles in each burst refresh cycle, and generating a first count code signal, based on a burst refresh command signal; a cycle guide circuit suitable for generating a second clock signal which toggles once in each burst refresh cycle, based on the burst refresh command signal and a precharge signal; a second count circuit suitable for counting the second clock signal and generating a second count code signal; and a control circuit suitable for generating a latch control signal for latching a target address in each burst refresh cycle, based on the first count code signal and the second count code signal.
Patent TW-I792385-B (TW)
Inventor: LIAO CHIN-JUNG
IPC: F24C15/20
Filed: 2021-07-05
Granted: 2023-02-11
Abstract: A kitchen hood includes a main housing, a guiding mounting seat, a heat-dissipating seat and an outer box. The main housing has an upper shell, and the upper shell forms a first fume outlet. The guiding mounting seat is disposed on the upper shell, and has a second fume outlet and a mounting area. The mounting area is located at one side of the second fume outlet and is spatially communicated with the first fume outlet. The heat-dissipating seat is disposed in the mounting area. A circuit board is disposed on the heat-dissipating seat. The outer box covers on the periphery of the circuit board and contact the periphery of the mounting area. The outer box forms at least flow-guiding hole. When a main fume flow passes through the first fume outlet, it draws an outer airflow to flow in the at least one flow-guiding hole, the heat-dissipating seat and the second fume outlet, so as to form a cooling airflow to cool down the heat-dissipating seat.
Patent TW-I779705-B (TW)
Title: Method for forming interconnect structure
Inventor: SU YI-NIEN
IPC: H01L21/60
Filed: 2021-07-06
Granted: 2022-10-01
Abstract: In some embodiments, the present disclosure relates to a method that includes depositing multiple hard mask layers over an interconnect dielectric layer. A first patterning layer is deposited over the multiple hard mask layers, and a first masking structure is formed over the first patterning structure. The first masking structure has openings formed by a first extreme ultraviolet (EUV) lithography process. Portions of the first patterning layer are removed according to the first masking structure. A second 
masking structure is formed within the patterned first patterning layer. A third masking structure is formed over a topmost one of the hard mask layers and has openings formed by a second EUV lithography process. Removal processes are performed to pattern the multiple hard mask layers to form openings in the interconnect dielectric layer, and interconnect wires having rounded corners are formed within the openings of the interconnect dielectric layer.
Patent TW-I786752-B (TW)
Title: Semiconductor device with p-n junction isolation structure and method for fabricating the same
Inventor: CHIU HSIH-YANG
IPC: H01L29/10
Filed: 2021-07-29
Granted: 2022-12-11
Abstract: The present application discloses a semiconductor device with a P-N junction isolation structure and a method for fabricating the semiconductor device. The semiconductor device includes a substrate, a first well layer positioned in the substrate and having a first electrical type, a bottom conductive layer positioned in the first well layer and having a second electrical type opposite to the first electrical type, a first insulating layer positioned on the bottom conductive layer, an isolation-mask layer positioned on the substrate and enclosing the first insulating layer, a first conductive line positioned on the first insulating layer, and a bias layer positioned in the first well layer and spaced apart from the bottom conductive layer. The bottom conductive layer, the first insulating layer, and the first conductive line together configure a programmable unit.
Patent TW-I810670-B (TW)
Title: 服務優惠推薦之裝置、方法及執行其方法之電腦程式產品
Inventor: TAI SHENG LI
IPC: G06Q30/02
Filed: 2021-10-04
Granted: 2023-08-01
Abstract: 本發明揭示一種用於服務優惠推薦之裝置、方法及執行其方法之電腦程式產品，該方法包括：接收服務優惠方案及用戶特徵，比對並計算用戶特徵與服務優惠方案，以產生用戶端裝置已安裝之服務的優惠內容及用戶端裝置已安裝之服務的推薦順序，接著發送用戶端裝置已安裝之服務的優惠內容及用戶端裝置已安裝之服務的推薦順序至用戶端裝置，另發送用戶端裝置已安裝但不符合優惠條件之服務的優惠內容或用戶端裝置未安裝之服務的優惠內容至用戶端裝置。
Patent TW-I773608-B (TW)
Title: 臥式變壓器
Inventor: CHOU TSUNG-HAN
IPC: H01F30/06
Filed: 2021-12-07
Granted: 2022-08-01
Abstract: 一種臥式變壓器，包含一繞線架、一磁芯組、一第一繞組、一第二繞組以及一隔離架。該繞線架包含一繞線部以及至少一連接該繞線部的接電部，該接電部上設有至少二接腳。該磁芯組包含二以該繞線架為基礎相對設置的磁芯，該二磁芯分別具有一中柱及二以該中柱為中心相對平行設置的側壁，該二側壁的每一成形一缺口。該第一繞組設於該繞線部上並連接該些接腳，該第二繞組設於該繞線部上並具有二由該缺口出線的末端，該隔離架位在該磁芯組側邊以隔離該磁芯組與該第二繞組的該二末端。
Patent TW-I811899-B (TW)
Inventor: CHEN CHAO-JUNG
IPC: H05K7/20
Filed: 2021-12-17
Granted: 2023-08-11
Abstract: 一種系統包括伺服器機架以及用於冷卻伺服器機架的流體迴路。流體迴路包括一個或多個冷卻模組、一熱交換模組以及一泵浦。一個或多個冷卻模組熱連接到用於使冷卻劑從中流過的一導管。每個冷卻模組包括熱連接到導管的一熱交換器以及流體連接到熱交換器的一冷卻器。熱交換模組流體連接到導管的出口。泵浦用以將冷卻劑從熱交換模組驅動到伺服器機架中的各伺服器。
Patent TW-I806342-B (TW)
Title: 通訊裝置及其固定件
Inventor: Wu cheng-hao
IPC: H05K7/14
Filed: 2022-01-06
Granted: 2023-06-21
Abstract: 一種通訊裝置包含無線通訊模組、中框件及固定組件。中框件包含底板及側板，側板連接底板，側板包含固定孔。固定組件包含第一固定件。第一固定件包含第一套部及第一固定部。第一套部固定上述無線通訊模組，第一固定部包含第一頸部及第一環凸部。第一頸部位於固定孔，第一頸部連接第一套部及第一環凸部。藉此，固定組件將無線通訊模組固定於中框件。
Patent TW-I787049-B (TW)
Inventor: XIA WEN-MING
IPC: G06F1/16
Filed: 2022-01-12
Granted: 2022-12-11
Abstract: 本發明揭露一種行動固態硬碟，其包含固定殼體、活動殼體、內殼體、活動機構及內部組件。內殼體設置於固定殼體及活動殼體內。活動機構與活動殼體相連接。內部組件設置於內殼體中。內部組件包含基板、風扇及開關組件。當活動殼體被操作，而活動殼體通過活動機構，向遠離固定殼體的方向移動後，內殼體的一部分將露出於固定殼體及活動殼體之間，且活動機構將帶動開關組件作動，而使風扇啟動，藉此，可以讓內部組件運作時所產生熱能更快速地向外傳遞。
Patent TW-I814479-B (TW)
Title: 長鼓型蝸杆軸加工裝置
Inventor: HAN GYU BONG
IPC: B23F11/00
Filed: 2022-07-11
Granted: 2023-09-01
Abstract: 本發明涉及一種長鼓型蝸杆軸加工裝置，包括：基座，具備用於旋轉具有長鼓型主體的被加工物的主軸、及用於將該被加工物固定到該主軸的尾座；旋轉單元，具備能夠進行左右旋轉並且在上表面安裝有該基座的旋轉板；排列手段，能夠沿前後左右移動該基座，使得以該旋轉板的中心點為基準，該長鼓型主體的圓弧切削面配置成與該旋轉板的旋轉路徑構成同心圓結構；以及刀具，固定在該旋轉板的中心側，以朝向該長鼓型主體的圓弧切削面；該被加工物通過在該刀具的外圍進行公轉來在該長鼓型主體的圓弧切削面實現長鼓型蝸杆軸的螺紋加工。
Patent TW-I811018-B (TW)
Inventor: LIU PO-TSUN
IPC: G09G3/20
Filed: 2022-07-13
Granted: 2023-08-01
Abstract: 本發明提供一種閘極驅動電路。閘極驅動電路包括多個輸出電路以及抗雜訊控制電路。第N級輸出電路包括掃描電路、輸出電晶體以及抗雜訊電路。掃描電路反應於第(N-a)級閘極驅動訊號來對第N級輸出電路的偏壓節點來進行預充電。輸出電晶體反應於偏壓節點的偏壓值以輸出第N級閘極驅動訊號。抗雜訊電路反應於第N級閘極驅動訊號的低電壓準位來移除位於偏壓節點的雜訊。抗雜訊控制電路控制所述多個輸出電路的多個抗雜訊電路的運行。
Patent TW-I811020-B (TW)
Inventor: CHEN HSIN YU
IPC: H01H83/00
Filed: 2022-07-13
Granted: 2023-08-01
Abstract: 本發明一種具備電動操作器斷路器防止誤動作自動閉鎖模組，可以改善習有斷路器於電力迴路中欠缺的保護裝置，不受廠牌、規格尺寸等限制，符合用電用戶設備裝置規則的法規需求，如第160-10條等，該當一種具備電動操作器斷路器防止誤動作自動閉鎖模組檢測到該電力迴路中於該斷路器電源側或負載側有電力異常狀態，如欠相、反相電力時，有自我保護閉鎖功能，內部機構相互之間達成電氣與機械功能互鎖，並強制禁止該斷路器閉合的機制，該電力迴路正常時，才解除閉鎖狀態，使該斷路器以手動或自動閉合通電，以確保用電安全。
Patent TW-I814499-B (TW)
Inventor: LIAO JAMES C
IPC: C12M1/36
Filed: 2022-07-22
Granted: 2023-09-01
Abstract: Disclosed herein is a device for synthesizing ribonucleic acids (RNAs). According to embodiments of the present disclosure, the device comprises an  in vitro  transcription (IVT) module, a digestion module, and a processor. Optionally, the present device further comprises an IVT reaction monitoring means, a digestion reaction monitoring means, and/or a purifying means. Also disclosed herein are the methods of synthesizing RNA by use of the present device.
Patent TW-I810083-B (TW)
Title: 縱橫雙向主纜索吊橋及縱橫雙向主纜索吊橋施工方法
Inventor: Zhang zhu-xin
IPC: E01D11/02
Filed: 2022-10-05
Granted: 2023-07-21
Abstract: 一種縱橫雙向主纜索吊橋，包含一縱向單元，及至少一橫向單元。該縱向單元包括兩個第一支架、多個縱向索錨碇座，及兩條縱向主索。該至少一橫向單元包括兩個第二支架、兩個橫向索錨碇座、一橫向主索，及兩個固定索夾，每一橫向主索的兩端分別由該等橫向索錨碇座固定，且該等固定索夾分別用以使該等縱向主索與該橫向主索連接固定。綜上，由於該等縱向主索承受之應力可以透過該等橫向主索分散至該等第二支架與該等橫向索錨碇座，可以降低該等縱向主索的負載，藉此達到提升使用壽命的功效，並可使吊橋作無限之延伸。
Patent ZA-200004987-B (ZA)
Title: Bacteria attenuated by a non-reverting mutation in each of the aroC, ompF and ompC genes, useful as vaccines.
Inventor: CHATFIELD STEVEN NEVILLE
IPC: C12R1/19
Filed: 2000-09-19
Abstract: The invention provides a bacterium attenuated by a non-reverting mutation in each of the aroC gene, the ompF gene and the ompC gene. The bacterium is useful as a vaccine. The bacterium may, for example, be an attenuated strain of E. coli useful in vaccination against diarrhoea.
Patent ZA-200005018-B (ZA)
Title: Novel cephalotaxane derivatives and process for their preparation.
Inventor: ROBIN JEAN-PIERRE
IPC: C07D309/08
Filed: 2000-09-20
Abstract: The present invention concerns a new general process for asymmetric hemisynthesis of harringtonines and their analogs, that are alkaloids used in chemotherapy. This process comprises direct esterification of a natural cephalotaxine with an acylating compound constituted of a side chain precursor which backbone and functionalization are entirely preformed. The invention also concerns a natural, synthetic or semi-synthetic harringtonines including their tautomeric forms and their salts of the following formula: wherein n=2 (i.e. harringtonine) or n=3 (i.e. homoharringtonine), in which the total content of impurities, possibly including enantiomeric forms, is lower than 1%, and/or the content of the major impurity is lower than 0.9%, and/or the chromatographic assay exhibits a harringtonines content higher than 97.5%.
Patent ZA-200201686-B (ZA)
Title: Feed injection system for catalytic cracking process.
Inventor: ARIEN CHEN YE-MON DIRKSE HENDR
IPC: C10G11/00
Filed: 2002-02-28
Abstract: A catalytic cracker riser reactor is connected to a regenerator standpipe through which hot, regenerated catalyst enters the riser bottom region. A hydrocarbon feed, such as gas oil, and dispersing gases, such as steam, are introduced through a single bottom entry nozzle assembly. The nozzle assembly comprises three concentrically arranged conduits. An inner conduit provides a passageway for a first dispersing gas and terminates in a first cap having at least one outlet passage for discharging the first dispersing gas in a generally radially outward and upward direction. The first conduit and first cap are enclosed by a second conduit and second cap, the annulus formed thereby providing a passageway for a liquid hydrocarbon feed. The second cap also has at least one outlet passage for discharging the mixture of hydrocarbon feed and first dispersing gas into the riser reactor in a radially outward and upward direction. A first dispersing gas enters the inner conduit and proceeds to the first cap into a mixing zone located in the vicinity of the discharge passage between the first and second caps. Hydrocarbon feed enters the second conduit, continues through an annulus to the second cap and is mixed with the first dispersing gas in the mixing zone, resulting in the formation of a fine two-phase mixture of small dispersed bubbles in heavy petroleum hydrocarbon liquid. As the fine two-phase mixture passes through the outlet passage into the riser reactor to contact with regenerator catalyst, the two-phase mixture suddenly expands, forming a fine atomization of heavy petroleum hydrocarbon feed with narrow droplet size evenly distributed across the riser reactor.
Patent ZA-200206507-B (ZA)
Title: Use of trilostane and its derivatives, optionally in combination with tamoxifen or raloxifene in the treatment of estrogen-dependent cancers e.g. breast, prostate and uterus cancers.
Inventor: MARGETTS GEORGE
IPC: A61P43/00
Filed: 2002-08-14
Abstract: Certain steroid compounds which are 2. a. -cyano-4. a. , 5. a. -epoxy-3-oxo steroids notably trilostane, act on specific isoforms of the oestrogen receptor in human and animal cells. The compounds are used to treat certain conditions in hormone-sensitive organs such as but not exclusively breast, prostate, central nervous system, heart, blood vessels and uterus. The invention shows that trilostane and related compounds selectively modulate ligand binding to the oestrogen receptor and in particular to oestrogen receptor beta. Also claimed are particulate forms of these compounds which consist of particles having a mean equivalent sphere volume diameter of 12  m or less and 90% having a particle size less than 50  m.
Patent ZA-200300920-B (ZA)
Title: Preparation of immobilised acclimated micro-organisms, production method and use for reactivating interrupted fermentation processes.
Inventor: DULAU LAURENT
IPC: C12N11/04
Filed: 2003-02-03
Abstract: The invention concerns a preparation of micro-organisms immobilised in beads acclimated to alcohol and/or acidity, and partly dried, capable of developing a fermenting activity when they are introduced in alcohol or acid musts. The invention also concerns a method for obtaining such a preparation comprising an acclimating step and an immobilising step for the micro-organisms, said steps being carried out in any sequence, but necessarily preceding a partial dehydrating step. The invention provides the advantages on enabling the micro-organisms to be preserved in viable and active form for several months, and to be used directly for reactivating interrupted fermenting processes, in particular alcoholic fermentation processes, for producing wine and other fermented beverages.
Patent ZA-200303337-B (ZA)
Title: The composition of multipurpose high functional alkaline solution composition, preparation thereof, and for the use of nonspecific immunostimulator.
Inventor: CHOI SOO-IL
IPC: A61K33/22
Filed: 2003-04-30
Abstract: Disclosed are a multipurpose, high-functional, alkaline solution composition, preparation therefor and use thereof as a nonspecific immunostimulator. The composition comprises 1-25 parts by weight of borax (Na<SUB>2</SUB>B<SUB>4</SUB>O<SUB>7</SUB>.10H<SUB>2</SUB>O), 10<SUP>-5</SUP>-10<SUP>-4 </SUP>parts by weight of sodium thiosulfate (Na<SUB>2</SUB>S<SUB>2</SUB>O<SUB>3</SUB>.5H<SUB>2</SUB>O), 30-150 parts by weight of potassium carbonate, 30-200 parts by weight of refined sugar (C<SUB>12</SUB>H<SUB>22</SUB>O<SUB>11</SUB>), and 100-200 parts by weight of water, based on 100 parts by weight of sodium metasilicate (Na<SUB>2</SUB>SiO<SUB>3</SUB>.5H<SUB>2</SUB>O). In addition to bringing about an improvement in disease resistance, weight gain rate, crop yield, crop quality, harvest time, the composition shows nonspecific immunostimulating activities, including antibody production and immune enhancement, by activating immune cells, thereby maximizing vaccination effects on malignant viral diseases.
Patent ZA-200305412-B (ZA)
Title: 4-fluoro-N-indan-2-yl benzamide and its use as pharmaceutical.
Inventor: WOHLFART PAULUS
IPC: A61P9/04
Filed: 2003-07-14
Abstract: A method of stimulating the expression of endothelial NO-synthase in a mammal, which method comprises administering a physiologically active amount of 4-fluoro-N-indan- 2-yl benzamide according to the formula (I)
Patent ZA-200308173-B (ZA)
Title: Backup tool for use with a rivet and method of use.
Inventor: ROONEY CARL BRIAN
IPC: B21J15/36
Filed: 2003-10-21
Abstract: Described herein is a bucking tool (10) for retaining a burr washer in place whilst a rivet is reacted. The tool (10) comprises a sleeve (12) with a shaft (14) slidably mounted within it. The sleeve (12) has a recess (22) formed at one end (20) for receiving the washer. The shaft (14) has a handle (16) attached at one end (18), the handle (16) being operable to move the shaft (14) in a longitudinal direction within the sleeve (12).
Patent ZA-200309579-B (ZA)
Title: Respiratory release mechanism.
Inventor: FECTEAU KEITH E
IPC: A62B18/08
Filed: 2003-12-10
Abstract: An adjustable mask provides a unique configuration, whereby one hand may be used to both doff the respirator and to securely don the mask. In one embodiment, such configuration is facilitated by a reel attached to one or cords, the cord attached at a second end to a harness designed to engage a portion of the head. Rotation of the reel in one direction causes the one or more cords to tighten, while rotation of the reel in an opposite direction causes the one or more cords to loosen.
Patent ZA-200805935-B (ZA)
Title: Polyurethane and polyurethane urea elastomers based on polycarbonate polyols
Inventor: NEFZGER HARTMUT
IPC: C08G/
Filed: 2008-07-08
Abstract: Polycarbonate polyol with a hydroxyl number of 50-80 mg potassium hydroxide (KOH)/g and an average functionality of 1.9-2.2, obtained by reacting a mixture of: (a) alpha , omega -alkane diol with 4-8 carbon atom; (b) technical dodecanediol; and (c) 0-10 wt.% of alkanol with 4-10 carbon atoms and hydroxyl functionality of 1-3, relative to the total mixture of (a), (b) and (c), with a carbonyl component, which is diaryl carbonate, dialkyl carbonate or carbonyl chloride, is claimed. Polycarbonate polyol with a hydroxyl number of 50-80 mg potassium hydroxide (KOH)/g and an average functionality of 1.9-2.2 obtained by reacting a mixture of: (a) alpha , omega -alkane diol with 4-8 carbon atom; (b) technical dodecanediol, where the technical dodecanediol contains 30-50 wt.% of 1,12-dodecane diol, 5-20 wt.% of diol with less than 10 carbon atoms and the absence of diol with more than 12 carbon atoms and the technical dodecanediol is present at 15-85 wt.%, relative to the mixture of (a) and (b); and (c) 0-10 wt.% of alkanol with 4-10 carbon atoms and hydroxyl functionality of 1-3, relative to the total mixture of (a), (b) and (c), with a carbonyl component, which is diaryl carbonate, dialkyl carbonate or carbonyl chloride, is claimed. Independent claims are included for: (1) an isocyanate-prepolymer with an isocyanate of 3-15 wt.%, obtained by reacting polycarbonate polyol and polyisocyanate, which is 1,5-naphthaline diisocyanate, 2,4'-diphenylmethanediisocyanate (2,4'-MDI), 4,4'-diphenylmethanediisocyanate (4,4'-MDI), mixture of 2,4'- and 4,4'-MDI, carbodiimide/uretonimine-modified-MDI-derivative or in molar excess of higher homologous dimethane series, diisocyanate toluol, hexamethylene diisocyanate or isophorone diisocyanate; and (2) polyurethane elastomer and polyurethaneurea elastomer obtained by reacting isocyanate-prepolymer and (i) aliphatic diol with primary hydroxyl group and number average molecular weight of 62-202 and optionally in less amount of 0-10 wt.%, relative to the aliphatic diol, compounds of small chain polyol with functionality of 2-4 and higher molecular polyol with a functionality of 2 or polycarbonate polyol, optionally in presence of water and other auxiliary- and additional-agents or (ii) aromatic diamine long chain of 4,4-methylene-bis-(2-chloroaniline), 3,3',5,5'-tetraisopropyl-4,4'-diaminodiphenylmethane, 3,5-dimethyl-3',5'-diisopropyl-4,4'-diaminophenylmethane, 3,5-diethyl-2,4-toluylenediamine, 3,5-diethyl-2,6-toluylenediamine, 4,4'-methylene- bis-(3-chloro-2,6-diethylaniline), 3,5-dimethylthio-2,4-toluylenediamine, 3,5-dimethylthio-2,6-toluylenediamine or 3, 5-diamino-4-chlorobenzoic acid-isobutyl ester, optionally in presence of water and other auxiliary- and additional-agents.